Rock slides which occur with regularity in certain highway sections are described. The slough is made up of decomposed granite and loose soil with small rock fragments coming from steep backwalls and side slopes. In addition to three or four special moves necessary each summer to clear a clogged section, the work schedule calls for the entire length being cut back and graded two or three times annually. To provide the increasing level of service, a Cat D6B tractor and sometimes a second are used. Details of the operation are briefly outlined. The schedule also includes other maintenance chores: gravel mileage is bladed; loose material is windrowed; and limited shoulder shaping and ditch cleaning is done. The maintenance work required 3 pieces of equipment, a 4-man crew, 2 five cu. yd. dump trucks and a flat bed trailer.

  • Corporate Authors:

    Dun Donnelley Publishing Corporation

    222 South Riverside Plaza
    Chicago, IL  United States  60606
  • Publication Date: 1964-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00263394
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 13 1974 12:00AM